F5-K000151596: Low severity F5 BIG-IP Next SPK vulnerability

Published Oct 15, 2025
·
Updated

When an iRule is configured on a virtual server via the declarative API, upon re-instantiation, the cleanup process can cause an increase in Traffic Management Microkernel (TMM) memory resource utilization.

Affected Software

5 affected componentsFixes available
F5 BIG-IP Next SPK
2.0.0
F5 BIG-IP Next SPK>=1.8.0<=1.9.2, >=1.7.0<=1.7.15
1.7.16
F5 BIG-IP Next CNF
2.0.0
F5 BIG-IP Next CNF>=1.1.0<=1.4.0
1.4.1
F5 BIG-IP Next for Kubernetes=2.0.0
2.1.0

Event History

Oct 15, 2025
Advisory Published
via F5·11:01 AM
Data Sourced
via F5·11:01 AM
DescriptionSeverityWeaknessAffected Software
May 25, 58218
Event
via F5·04:02 PM
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Frequently Asked Questions

1

What is the severity of F5-K000151596?

The severity of F5-K000151596 is categorized as medium due to the potential increase in memory resource utilization.

2

How do I fix F5-K000151596?

To fix F5-K000151596, update to the recommended versions of the affected products as specified by F5.

3

Which products are affected by F5-K000151596?

F5-K000151596 affects the F5 BIG-IP Next SPK, F5 BIG-IP Next CNF, and F5 BIG-IP Next for Kubernetes within certain version ranges.

4

Is F5-K000151596 a permanent vulnerability?

No, F5-K000151596 is not a permanent vulnerability, as it can be mitigated by applying the necessary updates.

5

Can F5-K000151596 lead to system performance issues?

Yes, F5-K000151596 can lead to increased memory usage, which may affect system performance.

Contact

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